GitHub user acmo62 edited a comment on the discussion:
保存工作流时候提示：请求参数[{0}]无效，保存失败
o.a.d.a.s.i.WorkflowDefinitionServiceImpl:[476] - Generate task definition
list failed, meet an unknown exception
java.lang.IllegalArgumentException: Cannot find TaskChannel for : PYTHON
3.4.0试了shell和python都API-Server的日志都这个错，3.3.x就不会，是缺少jar包？
GitHub link:
https://github.com/apache/dolphinscheduler/discussions/17845#discussioncomment-15979823
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